Other Non-Current Liabilities - Summary of Movements of Accrued Warranty (Detail) - CNY (¥) ¥ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Standard Product Warranty Disclosure [Abstract] | |||
| Accrued warranty - beginning of the year | ¥ 1,198,727 | ¥ 1,008,993 | ¥ 641,062 |
| Warranty costs incurred | (357,473) | (208,691) | (228,674) |
| Provision for warranty | 962,623 | 597,465 | 596,605 |
| Adjustments to pre-existing warranty liabilities | (8,997) | (199,040) | 0 |
| Accrued warranty - end of the year | 1,794,880 | 1,198,727 | 1,008,993 |
| Less: Current portion of warranty | (682,960) | (389,290) | (219,988) |
| Non-current portion of warranty | ¥ 1,111,920 | ¥ 809,437 | ¥ 789,005 |
| X | ||||||||||
- Definition Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount as of the balance sheet date of the aggregate standard product warranty liability that is expected to be paid within one year or the normal operating cycle, if longer. Does not include the balance for the extended product warranty liability. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount as of the balance sheet date of the aggregate standard product warranty liability that is expected to be paid after one year or beyond the normal operating cycle, if longer. Does not include the balance for the extended product warranty liability. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of decrease in the standard product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard product warranty. Excludes extended product warranties. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of increase (decrease) in the standard product warranty accrual from changes in estimates attributable to preexisting product warranties. Excludes extended product warranties. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of increase in the standard product warranty accrual from warranties issued. Excludes extended product warranties. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- References No definition available.
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